for문으로 만들려고 하는데 에러가 납니다. 채택완료

아래 코드를 for문으로 만들려고 하는데 잘 안됩니다. 도움 부탁 드려요~

for ($c=0; $c<4; $c++) { $color_{$c} = 0; $sql_{$c} = "select wr_4 from g5_write_test where wr_2 = '1' ; $result_{$c} = sql_query($sql_{$c});

while ($row_{$c} = sql_fetch_array($result_{$c})) { $color_{$c} += (int)$row_{$c}['wr_4']; } } ?>

while ($row_1 = sql_fetch_array($result_1)) { $color_1 += (int)$row_1['wr_4']; }

$color_2 = 0; $sql_2 = "select wr_4 from g5_write_test where wr_2 = '1'; $result_2 = sql_query($sql_2);

while ($row_2 = sql_fetch_array($result_2)) { $color_2 += (int)$row_2['wr_4']; }

$color_3 = 0; $sql_3 = "select wr_4 from g5_write_test where wr_2 = '1'; $result_3 = sql_query($sql_3);

while ($row_3 = sql_fetch_array($result_3)) { $color_3 += (int)$row_3['wr_4']; }

?>